PAST4H

from Fourth Algorithm Practical Skills Test PAST4H H - Mass Cutting

• Thoughts.
  • 900 in the high 900’s
    • And 900 more to spare.
  • Let’s explore all of them naively.
    • Try the smaller ones, and if they don’t work, try the larger ones. python

def solve(N, M, K, data):
    from collections import Counter
    ret = 1
    for y in range(N):
        for x in range(M):
            for w in range(ret + 1, min(N - y + 1, M - x + 1)):
                c = Counter(data[y + i][x + j]
                            for i in range(w)
                            for j in range(w))

                mc = c.most_common(1)[0][1]
                if mc + K >= w * w:
                    ret = w

    return ret

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